(Sydney, Australia-AP) -- It was a fabulous night in the pool for U.S. swimmers at the Sydney Olympics. All eight Americans who swam in finals won medals.

In women's gymnastics, the Romanians swept the all-around, the first time a country has done that since 1960.

SWIMMING=

U.S. swimmers had a terrific Thursday evening in Sydney.

Lenny Krayzelburg won another gold and Jenny Thompson became the most decorated woman swimmer in Olympic history.

Krayzelburg and Aaron Peirsol gave the U-S a gold-silver sweep in the men's 200 backstroke. Krayzelburg set an Olympic-record time of one minute, 56-point-76 seconds while winning his second gold medal of the Sydney Games. He's the fourth swimmer in Olympic history to sweep the backstroke golds.

Jenny Thompson and Dara Torres of the U-S tied for the bronze in the women's 100 freestyle behind gold medalist Inge de Bruijn of the Netherlands and Sweden's Therese Alshammar,

Thompson's bronze is the record-setting ninth medal of her career. Dawn Fraser of Australia, Kornelia Ender of Germany and American Shirley Babashoff each won eight.

Thompson also broke a tie with Babashoff for most Olympic medals by an American woman.

Kristy Kowal earned silver and Amanda Beard bronze in the women's 200 breaststroke. Hungary's Agnes Kovacs won.

Tom Dolan snatched silver and Tom Wilkens rallied to nab the bronze behind Italy's Massimiliano Rosolino in the men's 200 individual medley.

Thanks to the swimmers, the United States increased its lead in the medal count Thursday. The Americans finished the day with 31 medals (11 gold, 10 silver, 10 bronze) to 25 for Australia (8-9-8). France (7-9-4) and Russia (4-8-8) each had 20.

GYMNASTICS:

Nadia Comaneci must be proud.

Andreea Raducan, age 16, led a Romanian sweep in the women's all-around competition and became the first woman from her nation to win the event since Comaneci in 1976. Raducan finished with 38.893 points, while her teammates Simona Amanar and Maria Olaru took the silver and bronze medals.

It's the first time a country has swept the all-around since the former Soviet Union did it in 1960.

Elise Ray was the top American finisher in 14th place.

TRACK:

Come to the Sydney Games, and watch the stars drop out.

One defending champion won't run at an Olympic track meet already plagued by injuries and withdrawals and another champion may pull out.

Donovan Bailey, the 100-meter gold medalist four years ago, contracted a viral infection that had him coughing, sneezing and aching about 24 hours before the start of preliminary heats in his event

"If today was the 100 meters, I wouldn't be running," the Canadian sprinter said.

Heats of the women's 400 meters also start Friday, and troubled French runner Marie-Jose Perec won't be around to run for her third straight gold medal.

Staying on her own away from the other athletes, she claimed a man threatened her in her room. She jetted to Singapore on Thursday, where she and a companion promptly got into a scuffle with a cameraman.

The French Olympic delegation released a statement saying Perec won't compete.

SOFTBALL:

It happened again.

Virtually invincible coming into the Olympics, the U.S. softball team lost its third straight extra-inning marathon. This time Australia beat the Americans 2-1 in 13 innings.

Peta Edebone hit a two-run homer off Lisa Fernandez in the bottom of the 13th to win it for the Aussies. The Americans had 112 straight victories before the games.

BASKETBALL:

For the first time ever, somebody challenged a Dream Team.

The U.S. men led by only five points in the final minute before beating Lithuania 85-76, the closest Olympic victory ever for an American team stocked with NBA stars. The Dream Teamers never won by less than 22 points in the last two Olympics. TENNIS:

Lindsay Davenport is gone, but Venus Williams and Monica Seles moved on.

An injured left foot forced top-seeded Davenport to scratch from the women's singles tournament just before her second-round match against Rossana De Los Rios.

Davenport will undergo tests to see if she has a stress fracture and could be out of competition for the rest of the year.

"I hurt it in Canada before the U.S. Open," Davenport said. "It just hasn't completely healed yet."

Davenport's withdrawal ended the U.S. team's hope for a sweep in women's singles. The Americans still have a shot at gold and silver, however.

Second-seeded Williams advanced to the third round with a 6-2, 6-3 victory over Tamarine Tanasugarn of Thailand. Third-ranked Seles cruised past Dutch player Miriam Oremans 6-1, 6-1.

VOLLEYBALL:

Do the math. It's the only way the United States has a medal chance in men's volleyball.

The winless U.S. men dropped their third straight match _ 25-15, 25-20, 25-23 to Yugoslavia _ and are at the bottom of their group's standings. The Americans still have a mathematical chance at making the quarterfinals, but admit they're just playing for pride now.

BEACH VOLLEYBALL:

Both American duos reached the quarterfinals in women's beach volleyball. Jenny Johnson Jordan and Annett Davis rallied with a nine-point run to defeat Cuba's Dalixia Fernandez and Tamara Larrea 15-9, while Holly McPeak and Misty May pulled out a 15-13 win over Italians Daniela Gattelli and Lucilla Perrotta.

BOXING:

A heavy match is up next for U.S. heavyweight Michael Bennett. Bennett downed Poland's Wojciech Bartnik 11-2 Thursday, earning the chance to fight one of amateur boxing's most feared fighters, two-time Olympic champ Felix Savon of Cuba.

The Americans also suffered their first defeat as Dante Craig lost to Bulent Ulusoy of Turkey in a second-round match at 147 pounds. Clarence Vinson, fighting at 119 pounds, outpointed Taalaibek Kadiraliev of Kyrgyszstan to advance to the quarterfinals.

(Copyright 2000 by The Associated Press. All Rights Reserved.)